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Longan aroma compound and preparation method thereof

A compound and aroma technology, applied in the directions of essential oils/fragrance, fat generation, etc., can solve the problem of long fragrance retention time, achieve the effects of long fragrance retention time, high product quality, and meet the needs of the field of fragrance

Pending Publication Date: 2022-04-29
DONGGUAN BOTON FLAVORS & FRAGRANCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a longan aroma compound, which presents the characteristic fruity aroma of longan, and can realize that a single compound has the characteristic of longan aroma to meet the requirements of the field of fragrance. demand, and has the characteristics of long lasting fragrance

Method used

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  • Longan aroma compound and preparation method thereof
  • Longan aroma compound and preparation method thereof
  • Longan aroma compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A longan aroma compound has the following structural formula:

[0026]

[0027] A preparation method of longan aroma compound, comprising the steps of:

[0028] S1. Add berry acid into the first absolute anhydrous ether and stir fully to obtain a solution of berry acid in absolute anhydrous ether, which is set aside;

[0029] S2. Continuously feed nitrogen into the reactor placed in an ice-water bath, add lithium aluminum hydride into the reactor, then add the second absolute anhydrous ether into the reactor dropwise at 0.8h, continue stirring for 25min after the dropwise addition, and then Add the absolute anhydrous ether solution of berry acid obtained in step S1 dropwise into the reactor within 0.8 hours and react at room temperature for 2.5 hours. After the reaction, the reaction solution is obtained and set aside; the temperature during the entire reaction process must not exceed 30°C;

[0030] S3, under the conditions of ice-water bath and stirring, add the mi...

Embodiment 2

[0038] A longan aroma compound has the following structural formula:

[0039]

[0040] A preparation method of longan aroma compound, comprising the steps of:

[0041] S1. Add berry acid into the first absolute anhydrous ether and stir fully to obtain a solution of berry acid in absolute anhydrous ether, which is set aside;

[0042] S2. Continuously feed nitrogen into the reactor placed in an ice-water bath, add lithium aluminum hydride into the reactor, and then add the second absolute anhydrous ether into the reactor dropwise at 0.9h, continue stirring for 28min after the dropwise addition, and then Add the absolute anhydrous ether solution of berry acid obtained in step S1 dropwise into the reactor within 0.9 h and react at room temperature for 2.8 h. After the reaction, the reaction solution is obtained for use; the temperature during the entire reaction process must not exceed 30°C;

[0043] S3, under the conditions of ice-water bath and stirring, add the mixed liquid...

Embodiment 3

[0051] A longan aroma compound has the following structural formula:

[0052]

[0053] A preparation method of longan aroma compound, comprising the steps of:

[0054] S1. Add berry acid into the first absolute anhydrous ether and stir fully to obtain a solution of berry acid in absolute anhydrous ether, which is set aside;

[0055] S2. Continuously feed nitrogen into the reactor placed in an ice-water bath, add lithium aluminum hydride into the reactor, then add the second absolute anhydrous ether dropwise into the reactor at 1.0 h, continue stirring for 30 min after the dropwise addition, and then Add the absolute anhydrous ether solution of berry acid obtained in step S1 dropwise into the reactor within 1.0 h and react at room temperature for 3.0 h. After the reaction, the reaction liquid is obtained for use; the temperature during the entire reaction process must not exceed 30°C;

[0056] S3, under the conditions of ice-water bath and stirring, add the mixed liquid com...

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PUM

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Abstract

The invention relates to the technical field of spices, in particular to a longan aroma compound and a preparation method thereof.The longan aroma compound shows longan characteristic fruity aroma, can achieve the effect that a single compound has longan aroma characteristics to meet the requirements of the flavoring field, and has the advantage of being long in aroma holding time; the method for preparing the compound is simple, efficient and convenient to operate and control, the produced product is high in quality, low in cost and beneficial to industrial production, meanwhile, the prepared compound shows longan characteristic fruity aroma, the defect that an existing single compound does not have longan aroma characteristics can be effectively overcome, and the requirements of the flavoring field can be well met.

Description

technical field [0001] The invention relates to the technical field of spices, in particular to a longan aroma compound and a preparation method thereof. Background technique [0002] Longan (scientific name: Dimocarpus longan Lour.) is a plant of the Sapindaceae longan genus. Its flesh is fragrant, sweet and special. Longan is a fruit that is very popular among the public. Although it is currently possible to obtain flavors with the aroma of longan through the deployment of different substances, there is still no single compound that has the characteristics of longan aroma to meet the needs of the field of flavoring. International Flavors and Fragrances Co., Ltd. Or the internationally renowned flavor and fragrance companies such as Firmenich Flavor and Fragrance Company of Switzerland also do not have the compound that releases longan type fragrance. And the present invention researches a kind of compound with longan type aroma, and its characteristic fragrance is obvious...

Claims

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Application Information

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IPC IPC(8): C11B9/00
CPCC11B9/003
Inventor 关俊健吴奇林于泳飞
Owner DONGGUAN BOTON FLAVORS & FRAGRANCES
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